Air-moistening apparatus



(No Model.) 3 Sheets-S11eet 1.

E. H. G. OE'HLMANN. AIR MOISTENING APPARATUS.

No. 444,940. Patented Jan. 20, 1891.

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' (N0 Modl.) V s Sheets-Sheet 2.

E. H. C. OEHLMANN.

. AIR MOISTENING APPARATUS.

Patented Jan. 20,1891

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(No Model.) 3 SheetsSheet 3.

E. H. OVOEHLMANN.

AIR MOISTENING APPARATUS.

Patented Jan. 20; 1891.

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UNITED STATES PATENT union.

EMIL HEINRICH CONRAD OEHLMANN, OF BERLIN, GERMANY, ASSIGNOR TO" THEUNITED STATES AEROPHOR AIR MOISTENING AND VENTILATING COMPANY, OFBOSTON, MASSACHUSETTS.

AIR-MOISTENING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 444,940, dated January20, 1891.

- Application filed May 4, 1888. Serial No. 272,761- (No model) Patentedin England December 28, 1887, No. 17,852; in Bel gium January 31,1888,11'0: 80,166; in France March 20, 1888, No. 187,976; in LuxemburgApril 24, 1888,11'0. 982 in Spain April 30,1888,No, 7,787,- in Italy May3, 1888, No. 22,899/462; in Austria-Hungary June 1, 1888, No. 50,479 andNo. 11,346} in Germany July 1'7, 1888, No. 44,744, and in 8witzerlan lJanuary 21,1889,N0. 56.

To aZZ whom, it may concern:

Be it known that I, EMIL HEINRICH GON- RAD OEHLMANN, of the city ofBerlin, in the Empire of Germany, have invented certain new and usefulImprovements in Air Moistening and Ventilating Apparatus, (for which Ihave obtained Letters Patent in Germany, No. 44,744, dated July 17,1888; in Switzerland, No. 56, dated January 21, 1889; in Aus- 10tria-Hungary,No. 50,479 and No. 11,346, dated June 1, 1888; in France,No.187,976, dated March 20, 1888; in Belgium, No. 80,166, dated January31, 1888; in Italy, No. 22,899/462, dated May 8, 1888; in GreatBritain,No.17,852, [5 dated December 28, 1887; in Spain, No. 7,787,dated April 80, 1888, and in Luxemburg, No. 982, dated April 24, 1888,)of which the following is a specification.

In ord r to moisten the air, as required in spinning-mills, very finesprays of water projected from several nozzles are caused to impingeagainst suitable surfaces, and the fine cloud of water particles thusobtained is introduced along with the air from the vcnti- 2 5 later intothe \vorlcrooms.

The apparatus hitherto used have serious disadvantages both in the heavyconstruction of the spraying device and also in the connection of thelatter with the ventilating o apparatus. The light and speedy cleaningof the nozzles, which should be'the casein practice, is not effected,nor is the proper degree of moisture imparted to the air, so that themachinery and other objects in the work- 3 5 room shall be maintained inan effective state of moisture. All these disadvantages are avoided bythe central air-moistening apparatus forming the object of the presentinvention and in such a manner that, first, any

40 number whatever of nozzle-openings are so united together that thewhole of these nozles is easily accessible and can be cleaned in a shorttime by brushing them after the lid of the nozzles has been removed,whereas 5 formerly each nozzle had to be cleaned singly by means of afine needle after the spraying apparatus had been screwed off; secondly,only the finest spray of water is introduced into the air from theventilator, for the full current of the latter does not meet the cloudof fine water produced and does not carry away fine and coarsewater-spray together and indiscriminately, as has hitherto been thecase, but acts upon the dispersed water only partially and with lessenedforce, so that 5 5 the air only carries away the finest water particles,while the coarser onessink down, owing to their gravity,and arecollected in a suitable reservoir, and, lastly, it must also be noticedthat by reducing the number of noz- 6o zles not only an essentialsimplification of the apparatus is obtained, but that by the suppressionof the cooks that were hitherto necessary a great saving of cost is alsoeffected. 6 5

The invention consists in the construction and combination of parts anddetails, as will be fully described and set forth hereinafter, and thenpointed out in the claims.

In the accompanying drawings, Figure 1 is a vertical transversesectional view of my improved spraying-nozzle. Fig. 2 is a plan view ofthe same, the cover being removed. Fig. 3 is a vertical transversesection of a modification of the nozzle. Fig. 4 is an enlarged detailside view of parts of the same, parts being broken out and others beingin section. Fig. 5 is a vertical transverse sectional view of theair-moistening apparatus provided with myimproved nozzle. Fig.6 is asimilar view of a modification of my improved moistening apparatus andnozzle. Fig. 7 is a cross-sectional viewof a modification of myimprovedspraying-nozzle. Fig. 8 is a plan view of same, the corner beingremoved. 8 5

Similar letters of reference indicate corresponding parts.

On the body A of the nozzle, Fig. l, which is connected with the pipe A,bringing the water, is screwed the upper part B, which is closed by thelid 0. On the upper edge of said upper part B are arranged the conicalnozzle-openings a, each terminating on the outside in a fine.aperture,so that after screw.- ing on the lid 0 small nozzles arrangedin a circular line are obtained. The water fl'ow-- ing into the centralnozzle issues consequently in fine radial sprays, which strike againststop-surfaces D, Fig. 5, which can be closed or have the shape of asieve or consist of several plates. These water-sprays are dispersed onstriking against these surfaces.

In producing the required fineness of the individual sprays needed toobtain a serviceable dispersing action the apertures of the nozzles aremade extremely fine, and it is therefore necessary to retain theimpurities which the water under pressure always containsbefore thelatter issues out of the centralnozzle. For this purpose there isinserted between the body A of the nozzle andthe upper part B a sieve b,Fig. 1. This sieve is connected water-tight both with the body A and theupper part B by means of an inlaid. packing-ring d, Figs. 1, 3, and 4,while the cross-piece e in the upper part B takes up the pressureexerted by the water on the sieve and prevents the. latter from gettingtorn. The sieve Z) retains the impurities contained in thewater underpressure. If in course of time the nozzle-apertures should becomestopped, the lid 0, held down by means of thescrew f,.screwed down intothe cross 0,

is removed after looseningsaid screw, and all the nozzlefapertures a lieopen to examination, so thatby means of a-brush they can all be easilycleaned at once. The cleaning of all these. nozzles does not require anymore timethan that required formerly to clean one single nozzle. Besidesthis, the central nozzle requires less room and the cost of its manufactureis far less than that of the dispersing contrivances generallyused to produce fine water-sprays, in which a nozzle is required foreach spray.

The cleaning of the sieve I) is effected as easilyas that ofthe-nozzle-apertures a. For this-purpose the upper part B is screwed offthebody of the nozzle A. The sieve b, which lies now free, can be takenoff and brushed off. After replacing the sieve b in its former positionand screwing. on the lid 0 the central nozzle is again in working orderready for use.

Inthe central nozzle (shown in section in Fig. 1 and in plan in- Fig.2)'the water-jets obtained. are directed. horizontally. If oblique jetsare required, the central nozzle (shown in section in Fig. 3and indetails in Fig. 4 on a larger scale) can be used advantageously. Thisnozzle consists, likewise, of thebody A, the upper part B, and the lidC. The sieve b madewater-tight by means of the packing-ring d, retainslikewisethe coarser partsor impurities of. the water, butdoes not bear,as in the foregoing construction, against a cross-piece connected withthe top part, but againsta strong piece of perforated metal I), whichtake up the pressure of the water and prevents the sieve b from gettingtorn. The

plate 1; lies on top of the packing-ring d,

which renders both the body A andv upper part B water-tight, so that thewater under pressure cannot run around the edges of the sieve I) andplate I).

In the construction shown in Figs. 3 and 4 the nozzle-apertures a areoblique, and the upper edge of the. top part B contains one part of thenozzle-apertures, while the lower edge of the lid 0 contains the otherpart of the apertures. Thus when the lid O has been removed the partsforming the apertures of the nozzle lie open to view and are easilycleaned by means of a brush. However, as the wear cannot be avoided, andin order that the apertures of the nozzles can be rebored, the directionof the latter is such that after removingv the upper part B and the. lid0 a needle can. be introduced in the said apertures, as shown by thedotted lines on Fig. 3.

The body A, the upper part B, and lid G are held together by means of aclamp E,the hooked ends of which rest against the pro.- jections g'ofthe body A, whilethe pressurescrewf, passing through the clamp-presseson the lid 0.

In order to be able to bring the lid G'exactly on the upper part B, sothat the parts formingby their reunion the nozzles maybe exactlyopposite to each other, the upper part B and the lid G are provided withcenteringpins or the centering device represented is applied. In thelatter case there arearranged on the upper part two flaps h, forming; agroove. After the openings at inthe upper part and lid have been workedon, a plate z', fitting exactly in the groove left between the flaps h,is soldered to the lid G. The plate z secures the exact replacement ofthe lid- C on the upper part B always in the same position.

also be made integral. The nozzle-openings are then not formed in twoparts, but bored claim as. new and desire to secure by Letters Patent 1.In a nozzle for an air-moistening appa ratus, the combination, withapart surrounding the central passage and having at its top edge anannular flat surface in a plane at right angles to the axis of saidpassage, of a part having a perfectly flat surface, one ofsaidsurfaceshaving radial grooves, and the said parts or surfaces whencompressed together being adapted to form jet'apertures along the linesof the grooves, substantially as shown and described.

2. In a nozzle for an air-moistening appa-= The upper part B and the lidG can.

IIO

ratus, the combination, with an annular part surrounding the centralpassage and having a radially-grooved flat surface in a plane at rightangles to the axis of the said passage, of a part having a fiat surface,said parts or surfaces when compressed together being adapted to formjet-apertures along the lines of the grooves, substantially as shown anddescribed.

3. In a nozzle for an air-moistening apparatus, the combination, with apart surround-- ing the central passage and having an ann ular flatsurface in a plane at right angles to the axis of said passage, of a toppart or cover having a flat surface, one of said surfaces having radialgrooves, and of a fastening device adapted to lock the said partstogether without causing a grinding of their contacting surfaces,substantially as shown and described.

4. The combination, with the bottom section of a nozzle for anair-moistening apparatus, of a part resting on the same and having anannular flat top surface, of a top part or cover having a flat surface,one of said surfaces being radially grooved, and of a fastening devicefor locking the bottom section and the upper parts all together,substantially as shown and described.

5. In a nozzle, the combination, with a bottom section, of awire-netting or sieve resting on the top edge of the same, a top partresting on the sieve and having radial grooves in its top edge, and acover held on said grooved edge, substantially as herein shown andclescribed.

G. In a nozzle, the combination, with a bottom section, of a sieve orwire-netting resting on the top edge of the same, a top section havingradial grooves in its top edge, a cover held on said grooved edge, and afastening device for locking the bottom section, top section, and covertogether, substantially as herein shown and described.

7. In an air-moistening apparatus, the combination, with a suitableimpingement or stop surface, of a nozzle having two flat surfaces, oneof said surfaces being radially grooved.

8. In an air-moistening apparatus, the combination, with a suitablestop-surface, of a nozzle having two flat surfaces, one of said surfacesbeing radially grooved, together with a fastening device, substantiallyas described, for holding the two surfaces together.

9. In an air-moistening apparatus, the combination, with a nozzleconsisting of two flat surfaces, one of which is radially grooved, of astop-surface completely surrounding saidnozzle, said stop-surface beingsubstantially perpendicular to the spray issuing from said nozzle.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

EMIL HEINRICH CONRAD OEI-ILMANN.

\Vitnesses:

B. R01, ALEX. SCHOLZE.

